ATA 21 — Air Conditioning

83,755 parts classified under this chapter

Reliability rollup

100%Median scrap propensity

4,868 parts · 17,977 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
1200LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1201-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
12011639001	CHECK VALVE	—	Embraer EMB-120 Brasilia	21	Hydraulics	OEM
12015160001	SEAL	—	Embraer EMB-120 Brasilia	21	Consumables / Hardware	OEM
12015335001	VALVE	—	ERJ-135	21	unknown	OEM
1201LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
12021119001	ARM	EMB	Embraer EMB-120 Brasilia	21	Flight Controls	OEM
12021508002	VALVE	—	Embraer EMB-120 Brasilia	21	unknown
12024937011	DUCT	—	Embraer EMB-120 Brasilia	21	Pneumatics	OEM
1202LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1202M-1B1-01	BEARING	Schatz Bearing Corporation	767-300	21	Consumables / Hardware	PMA
120397001	OUTFLOW VALVE	—	ERJ-145	21	Environmental / Cabin	OEM
12039804001	MOUNT	—	Embraer EMB-120 Brasilia	21	unknown
1203LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
12042000001	FAN MUFFLER	—	Embraer EMB-120 Brasilia	21	unknown
12042863003	SEAL	—	Embraer EMB-120 Brasilia	21	Consumables / Hardware	OEM
12042863009	HOSE	EMB	Embraer EMB-120 Brasilia	21	Consumables / Hardware	OEM
12042892001	SHAFT	—	Embraer EMB-120 Brasilia	21	unknown	OEM
12046207002	RAM AIR DOOR	BEECH	Embraer EMB-120 Brasilia	21	Environmental / Cabin	OEM
12047629001	SPRING	—	Embraer EMB-120 Brasilia	21	Consumables / Hardware
1204FF-1C1-04	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1204LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1204M-1B1-01	BEARING	Schatz Bearing Corporation	767-300	21	Consumables / Hardware	PMA
1205-1B1-01	Bearing, Ball, Radial, Conrad, Single Row, Metric, Light Series	Schatz Bearing Corporation	747-400 747-100+4	21	Consumables / Hardware	PMA
1205FF-1C1-01	Bearing, Ball, Radial, Conrad, Single Row, Metric, Light Series	Schatz Bearing Corporation	737-300 737-400+6	21	Consumables / Hardware	PMA
1205LLT-1C1-01	Bearing, Ball, Radial, Conrad, Single Row, Metric, Light Series	Schatz Bearing Corporation	737-600 737-700+6	21	Consumables / Hardware	PMA
1205LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1206-1B1-01	Bearing, Ball, Radial, Conrad, Single Row, Metric, Light Series	Schatz Bearing Corporation	737-300 737-400+3	21	Consumables / Hardware	PMA
1206LLT-1C1-01	Bearing, Ball, Radial, Conrad, Single Row, Metric, Light Series	Schatz Bearing Corporation	757-200 757-300+10	21	Consumables / Hardware	PMA
1206LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1208FF-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1208LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1208M-1B1-01	BEARING	Schatz Bearing Corporation	767-300	21	Consumables / Hardware	PMA
1209100	PRESSURE SWITCH	—	A320 A320-200	21	Electromechanical	OEM
1209FF-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1209LLT-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1209LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1209M-1B1-01	BEARING	Schatz Bearing Corporation	767-300	21	Consumables / Hardware	PMA
120HE01N1	MOTORISED SPV	Eaton	—	21	—
120RU01Z01W00A	RELAY	—	A300	21	Electromechanical	OEM
120TA000-1	Vapor Cycle Air Conditioning System	Enviro Systems Inc.	H120	21	Environmental / Cabin	PMA
1210266-101	Duct	Senior Aerospace SSP, Senior Operations Inc	747-200 C402+1	21	Environmental / Cabin	PMA
1210FF-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1210LLT-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1210LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1211-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1211FF-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1211LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1212FF-1C1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA
1212LT-1B1-01	BEARING	Schatz Bearing Corporation	747-400	21	Consumables / Hardware	PMA